Power supply system and method for the operation of an electrical load
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[0033]FIG. 1 shows a current source arrangement according to an embodiment of the invention. A current source 1 is connected in a common current path to a connection means 2 for the connection of an electrical load 3. A voltage tapping node 4 is formed between the current source 1 and the electrical load 3. The voltage tapping node 4 is connected to an inverting input of a comparator 5. A further input of the comparator 5 is provided with reference symbol 6, formed in non-inverting fashion and designed for feeding in a reference threshold Vc. The output of the comparator 5 is connected to the control input of an assigned transistor 7. Transistor 7 can be a MOSFET or bipolar transistor. The controlled path of the transistor 7 is connected between a common signal line 8 and a reference potential terminal 9. The signal line 8 is connected to a feedback input of a DC voltage regulator 10 for the driving thereof. The DC voltage regulator 10 has an inpu...
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